Valve



F. L. DREW 1,863,652

June 21,1932.

VALVE Filed sa t. 29, 1930 3 Sheets-Sheet 1 i gwuentoc FrankLhDrew,

June 21, 1932 F, L, DR W 1,863,652

VALVE Filed Sept. 29. 1930 3 sheets-sheet 2 Frank L. Drew,

- June 1932; v w 1,863,652

'vALvE Filed Sept. 29, 1930 3 Sheets-Sheet 3 Patented June 21, 1932 i UNITED STATES.

rum: 1. DREW, or EDGEWOOID MARYLAND VA E Application filed September 29, 1930. Serial ate-185,225;

: My said invention'relates to a valve and it is 'a specific ob]ect of the sameto provide a non-drip valve constructed in such a manner as to avoid spilling or wasting any of the' liquid being dispensed into containers of any-suitableltype. It is frequently of importance to measure the quantity quite pre-' cisely asin putting up expensive medicinal preparations and it isfrequently also desiron the floor or onthe workmen employed about the. dispensing .machine. As one instance of such utility I maymention the matter:of-.,loading shells with poison gas such as 5 mustard gas where even-a singlerdrop adhering to or falling fromthe dispensing nozzle may cause serious injury to a workman.

' Another. object of my invention is to pro- ,vide'improved means for filling containers go of liquid. precisely to a predeterminedheight.

By my deviceit is possibleto fill them ,to a point above-the predetermined height and then to draw off the excess quickly and precisely. .1.- :6 Referring tothe drawings, which are made apart of this application and in which similar reference characters indicate "similar partsz.

. Fig. 1 is an elevation, part1 in section, il-

, l lustrating apreferred form 0 my invention,

Fig. 2, a side elevation of the body of the valve,

Fig. 3, a section on line 3-3 of Fig. 2,

Fig. 4, a section on line 4-4 of Fig. 3,

Fig. 5, a similar section showing a different position of the plug,

. Fig. 6, a longitudinal in a plane 'corres 3-3 of Fig. 2 an 40 tion of Fig. 4,"

Fig. 7, a similar section with the plug in the position'of Fig. 5,

Fig. 8, an end view of a modified form, Fig. 9, a similar view showing the handle 45 and plug in a different position,

Fig. 10, a side elevation of the valve body of Fig. 8,

Fig. 11,'a plan of Fig. 10,

s Fig. 12, a side elevatlonof the plug of the Yfllve in Fig. 8,

section of theivalve onding to-"tliat of the line 'with the plug in the'posiable to prevent any drops from splattering I5ig. 13, anelevation, partly in section, of l a modified form of;apparatus, and

Fig. 14, asimilar elevation of still another In theform-of the invention illustrated in 5 F 1g. 1, reference character indicates a" pipette or other suitable container for a supply of liquidconnected by a pipe 21 to the port 22 of the valve body 23. A pipe 24 leads from a'source'of supply of any suitable char- .00 acter. to the port 25 and this is adapted to be connected to the pipe 21 for replenishing the supply in the pipette, by suitable manipulation of the plug 26through-the medi- ,um ofvthe handle 27;.jiThemovement of the ca .plugisan oscillatory one whichis'limited by twopins'28; on thebody and a coacting pin 29 on the plug, A suitable nozzle 30 is connected to a-port 31 of the valve body said nozele being adapted to enter .a' filling opening in a receptacle 33 of any suitable character, which receptacle is mounted for movement from the solid line position to the dotted line position, in which latter position it is filled and. then lowered for removal and replace 7 ment. It is filled to the level ofthe lower end of'the nozzle or to a level above such lower end. In the latter case the excess is drawn oflt' to a predetermined level by means hereinafter described and then the shell is lowered and removed. Another pipe 34 extends from a port 35 on the valve'body and is connected to asuitable suction device so that by suitable movement of the plug a suction maybe exertedupon the nozzle to withdraw any of he fluidremaining in the same i or adhering toit at the time, when thepi e .24 is connected to thefpipett'e for replenis ing the-same. I The main receptacle for the fluid and the suction device may be ofan'y desirable or conventional character, hence are not illustrated.

I f In Fig. 5 there is an oblique diametrical passage 36.. extending. through the plug and, in that position, completing the Q5 passage through pipe 21, port 22', port 31 and nozzleBQ to the receptacle tobe filled wherethe-inaterial in the pipette may flow into the receptacle 33. Another oblique passage 37 is out of action at this time; Now when 1 the material in the pipette has passed into receptacle 33 the plug is turned by swinging handle 37 to the r1ght into the position shown in Fig. 1 whereupon the diametrical assage 36 connects the pipette to the nozzle utonerbranch of this passage now extends toward the port as shown in Fig. 4 and a third branch at 38 extends up towardport 22 so that replenishment may now take p ace from the receptacle connected to pipe 24 10 through port 25, through the plug, through in Figs. 8 to 12 the valve is similar to that just described but the ports 31 and 35' are in the same plane'so that the four ports are in only two planes instead of being in three planes transversely of the valve body or casmg as in the modification first described. As seen in Fig. 12 the passage 37 .lies in a plane at right angles to the axis of the plug.

Referring to the form of the invention illustrated in Fig. 13 a pipette 40 communi cates by a pipe 41 with a port 42 in a valve body 43 and is adapted to communicate with a port 44 and a nozzle 45, there being also a supply pipe 47 leading. from a source of fluid to a port 48 and adapted to be connected to the pipe at 40 for replenishing the supply on appropriate movement of handle 49. Instead of connecting the pipe 50, which leads to the suction. device, directly to the valve body I have connected this pipe to the nozzle and have also shown a bulb 51 formceiving the material drawn .from the nozzle or from the receptacle 53, whichmay be a $211 to be loaded with mustard gas or the e. 1 p A valve 54 is interposed between the bulb and the suction device (not shown) and this valve is operated by a handle 55 connected being both in the form of rock arms it will be seen that oscillation ofone will cause the other to oscillate and the valves are so con- I structedthat when the plug 57 is moved into 66 then permitted to act. The position last de- In the form of the invention illustrated by a link 56 to the handle 49. These handles scribed is that one in which the parts are shown in dotted lines in Fig. 13, while the full-line position is an intermediate one in which all ports are closed. Clockwise movement of the parts 49, 55 and 56 brin the valves into a position where thersuction is cut ofi and the passage from the pipette to the receptacle is 0 en.

In the form of t einvention shown in Fig.

14 the parts are or may be substantially of the same character as in Fig. 13 but the three-Way valve at 58 is operated by a handle 59 and the valve at 60 is operated by an indeendent handle 61 so that the two valves must e manipulated independently. Inbothpthe forms shown in Figs. 13 an 14 a valve 62 controls an outlet 63 which maybe open at suitable times for drawing off the liquid that has accumulated in the bulb:51.,

It will be obvious to those skilled that the forms of the invention shown in the drawings are illustrative only a'nd that many a rotary plug for controlling the flow b -1iq:;-

uid, and means operated by rotatingj said plu for withdrawing residual or excess liquid back through said passage.

2. In combination, acontainer for liquid having a passage for replenishingthe HFply in the container and a passage leading the container to a receptacle, a non-drip valve rom eparting from the s irit of my controlling both passages, and means 'con- 4 nected to said; valve for, drawing ofi "residual or excess liquid whenfthe passage from the container to the receptacle is closed; v

3. The combination of dispensingmeans for a liquid including a member having a pas--' sage, a valve adapted to be opened or closed for controlling the flow of thejliquid through said passage to a receptacle, andmeansoperated in opening or: clos1ng said valve for removing residual l-iquid from said passage.

4. The combination of dispensing means for a liquid said means having a' passage, a valve for controlling the flow of the liquid through said passage to a receptacle, a rockarm. for opemn andclosing the valve and means 0 erated y the rocking movement of said roc arm for creating' 'a suction in the or excess liquid.

5. The combination of dispensing means .125 outlet end of said passage to remove residual naoaoea receptacle, a valve common to said for controlling the flow of the liquid to said container and from said container to the receptacle, means for creating a suction in the outlet end of the second-named passage to remove residual or excess liquid, and a valve for controliin the suction.

6. Ihe com ination of dispensing means including a fixture having a nozzle and having a dis ensing passage leading to the nozzle, sai fixture aiso having a branch passage connected to a source of suction and leading into the firsbnamed passage adja cent the nozzle, and valve means for controlling the suction and the flow of liquid.

7. The combination of dispensing means including a fixture having a nozzle and a dispensing passage leading to the nozzle, said fixture having a branch passage connected to a source of suction and leading into the firstnamed passage adjacent the nozzle and interconnected valve means. for controlling the suction and the flow of liquid.

8. In combination, dispensing means including a container for liquid said means being provided with apassage {or replenishing the suppl in the container and a passage leading rom the container to a nozzie, a three-way valve having a plug controlling both (passages, said dispensing means also provi ed with a suction passage connected to said valve, and, there being a passage in Said plug for connecting said nozzle to said suction passage.

9. In combination, dispensing means pro- I vided with a container for liquid, said means having a passage for re lemshing the supply in the container an a passage leading om the container to a receptacle, a threeway valve controlling both passages, said valve having a body, a plug in said bod having a passage with three branches sai lug being movable to connect a port in said ody through said passage with either one of a pair of other ports, said plug having another passage connecting a fourth port with one of said pairs of ports when the other of said pair of ports is connected to the first named port, and said dispensing means having a suction passa e connected to said fourth port.

10. In com ination, a container for liquid having a passage for replenishing the suply in the container and a passage leading rom the container to a receptacle, a non-dri valve controlling both passages, a han e movable to opposite positions for opening and closing said valve, and means controlled b the movement of said handle for drawing 0 residual or excess liquid when the passage from the container to the receptacle is closed.

In testimony whereof I afiix my signature.

FRANK L. DREW. 

